Mixing structure



FIG. 1 is a front-side perspective view of a mixing structure, showing the new design.

FIG. 2 is a front-side view thereof.

FIG. 3 is a rear-side view thereof.

FIG. 4 is a right-side view thereof.

FIG. 5 is a left-side view thereof.

FIG. 6 is a top-side view thereof; and,

FIG. 7 is a bottom-side view thereof. 

CLAIM The ornamental design for a mixing structure, as shown and described. 